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Objective(s)</b>00.00230.002421512716200.00030.01070.0133false2012-08-312012-12-212012-12-182012-12-21485BPOSSHORT TERM INVESTMENTS TRUST0000205007<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b><b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)December 31, 2013<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b>The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br />The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b><b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b><b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br /><br />Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>00.0015<b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b>0.001<b>Investment Objective(s)</b>0.0007The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.0.0032<b>Fees and Expenses of the Fund</b><b>Investment Objective(s)</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.0022<b>Shareholder Fees</b> (fees paid directly from your investment)Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.000<b>Performance Information</b>0The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.0010.0003<b>Shareholder Fees</b> (fees paid directly from your investment)0.00030.00160.00230<b>Example.</b>0.00070.003This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.00.0025www.invesco.com/us16<b>Fund Summaries - TREASURY PORTFOLIO</b>5290-0.0005205<b>Annual Total Returns</b><b>Investment Objective(s)</b><b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b><b>Principal Investment Strategies of the Fund</b><b>Principal Risks of Investing in the Fund</b><b>Performance Information</b><b>Annual Total Returns</b><b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Principal Investment Strategies of the Fund</b><b>Investment Objective(s)</b>December 31, 2013<b>Investment Objective(s)</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.Cash Management Class year-to-date (ended September 30, 2012): 0.06% <br />Best Quarter (ended December 31, 2006 and September 30, 2007): 1.31% <br />Worst Quarter (ended March 31, 2010 and June 30, 2011 through December 31, 2011): 0.01%This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Fund Summaries - GOVERNMENT & AGENCY PORTFOLIO</b><b>Fees and Expenses of the Fund</b>0.0015The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.00.0007<b>Fees and Expenses of the Fund</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.2393This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.December 31, 2013<b>Shareholder Fees </b>(fees paid directly from your investment)170<b>Principal Risks of Investing in the Fund</b><b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>396<b>Fees and Expenses of the Fund</b><b>Investment Objective(s)</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Shareholder Fees</b> (fees paid directly from your investment)The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Shareholder Fees </b>(fees paid directly from your investment)This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>0As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.0This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.-0.0008<b>Fees and Expenses of the Fund</b>0.0014<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b>0<b>Investment Objective(s)</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.0<b>Fees and Expenses of the Fund</b>0This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Shareholder Fees</b> (fees paid directly from your investment)0<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Example.</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b><b>Example.</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations. <br /><br />The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Principal Risks of Investing in the Fund</b><b>Principal Investment Strategies of the Fund</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.<b>Example.</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance.<br/><br/>Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Annual Total Returns</b><b>Performance Information</b><b>Shareholder Fees</b> (fees paid directly from your investment)The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.December 31, 20130<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.001<b>Fund Summaries - TREASURY PORTFOLIO</b>000.0003The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0013The Fund&#8217;s past performance is not necessarily an indication of its future performance.As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.0www.invesco.com/us0<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.00150.00150.0010.00030.0003<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.00030.00280.00210.001<b>Annual Total Returns</b><b>Example.</b>260.0010.0022910.00170.0003164<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)0.00233760.0021<b>Example.</b>Corporate Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.31% <br/>Worst Quarter (ended March 31, 2010 and December 31, 2010 through December 31, 2011): 0.01%<b>Principal Investment Strategies of the Fund</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:1764<b>Fund Summaries - STIC PRIME PORTFOLIO</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:114<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.264-0.0002<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees </b>(fees paid directly from your investment)14<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)63<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.116The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio structure is driven to some extent by the supply and availability of municipal obligations. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b>272The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br />The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.0003<b>Annual Total Returns</b>0.0153December&nbsp;31, 2013Corporate Class year-to-date (ended September 30, 2012): 0.07%<br/>Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.32% <br/> Worst Quarter (ended June 30, 2011 through December 31, 2011): 0.01%The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Example.</b>0.05040.05240.0262005-06-300.04850.00220.04850.00120.01690.00120.00030.00060.0003This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.Corporate Class year-to-date2012-09-3023<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)The Fund&#8217;s past performance is not necessarily an indication of its future performance.<b>Principal Risks of Investing in the Fund</b>0.0007www.invesco.com/usBest Quarter2007-09-300.0132Worst Quarter2011-12-310.00010.0023December 31, 201384<b>Example.</b>0.00031510.0007The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.3500.0033The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/us-0.0005An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)22December 31, 2013Cash Management Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.27%<br/>Worst Quarter (ended March 31, 2010): 0.00%<b>Principal Investment Strategies of the Fund</b>720.0028128<b>Principal Investment Strategies of the Fund</b>2910.00030.01330.0202<b>Fund Summaries - STIC PRIME PORTFOLIO</b>December 31, 2013<b>Principal Investment Strategies of the Fund</b>0.0495An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.05110.02260.0027<b>Investment Objective(s)</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.00060.0003The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.0.01610.0095As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.0.0116Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.03The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.0482The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations. <br /><br />The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.0495<b>Principal Risks of Investing in the Fund</b>0.02020.00160.0002130.0003An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.42<b>Fees and Expenses of the Fund</b><b>Principal Risks of Investing in the Fund</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.73167The Fund&#8217;s past performance is not necessarily an indication of its future performance.<b>Principal Risks of Investing in the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.www.invesco.com/usMoney Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Performance Information</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br /> The portfolio structure is driven to some extent by the supply and availability of municipal obligations. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br /> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br /> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br /> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Principal Investment Strategies of the Fund</b>Corporate Class year-to-dateThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.2012-09-300.0002Best Quarter2006-12-310.0131Worst Quarter2011-12-31As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.Cash Management Class year-to-date2012-09-300.00010.0006The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.Corporate Class year-to-date (ended September 30, 2012): 0.02%<br/> Best Quarter (ended December 31, 2006): 1.29%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<b>Shareholder Fees</b> (fees paid directly from your investment)Best Quarter02007-09-3000.0131Worst QuarterThe Fund&#8217;s past performance is not necessarily an indication of its future performance.2011-12-31An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.00010.00150.0003Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.00050.0023<b>Performance Information</b><b>Example.</b>0.0017The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.www.invesco.com/usAs with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.<b>Annual Total Returns</b>2012-09-300.0002Best QuarterAs with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/>Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/>Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/>Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/>Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/>Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/>Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/>U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.2006-12-310.01270Worst QuarterThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.2010-03-31This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0The Fund&#8217;s past performance is not necessarily an indication of its future performance.<b>Performance Information</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.www.invesco.com/usAn investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Institutional Class year-to-date (ended September 30, 2012): 0.04%<br />Best Quarter (ended June 30, 2007 and September 30, 2007): 0.89%<br />Worst Quarter (ended March 31, 2010 and June 30, 2011 through December 31, 2011): 0.01%Best Quarter<b>Performance Information</b>0.00032006-12-31<b>Annual Total Returns</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.01290.0142Worst Quarter<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.01862011-03-310The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Performance Information</b><b>Annual Total Returns</b>Corporate Class year-to-dateThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.2012-09-300.00020.00150.0075The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0005The Fund&#8217;s past performance is not necessarily an indication of its future performance.1999-12-301768123287Institutional Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.29%<br/>Worst Quarter (ended December 31, 2009, March 31, 2010, June 30, 2010 and December 31, 2010 through December 31, 2011): 0.01%0.0095290.00041010.00070.0069The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.1800.0025The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.0207413www.invesco.com/us0.0348<b>Principal Risks of Investing in the Fund</b>0.03280.02220.01020.0166<b>Annual Total Returns</b>0.01020.00880.0120.01310.03070.00060.01630.0490.05050.02330.02210.00230.00020.0002<b>Principal Investment Strategies of the Fund</b>Cash Management Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.28% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%2005-03-310.01630.010.01140.0297Cash Management Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.30% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.0480.0480.01640.0009As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.0.00020.0003Institutional Class year-to-dateThe Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/> The portfolio structure is driven to some extent by the supply and availability of municipal obligations.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.2012-09-300.0004Best Quarter2007-09-300.0089Worst Quarter2011-12-310.0001Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Principal Risks of Investing in the Fund</b>Cash Management Class year-to-date2012-09-30December 31, 20130.0002Best Quarter0.01712006-12-310.01040.0130.0124Worst Quarter0.03122011-03-3100.0497www.invesco.com/us<b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b>0.0519<b>Investment Objective(s)</b><b>Annual Total Returns</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.<b>Fees and Expenses of the Fund</b><b>Shareholder Fees </b>(fees paid directly from your investment)0.02840.0048<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)Cash Management Class year-to-date0.0011<b>Example.</b>2012-09-300.00020.0005<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)Best Quarter<b>Performance Information</b>2006-12-310.0128Cash Management Class year-to-date (ended September 30, 2012): 0.04% <br />Best Quarter (ended June 30, 2007 and September 30, 2007): 0.87% <br />Worst Quarter (ended March 31, 2010): 0.00%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)Worst Quarter2011-03-3100.00020.01490.0192<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentTaxAdvantagePortfolio column period compact * ~</div>
<b>Example.</b>1998-09-01The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentTaxAdvantagePortfolio column period compact * ~</div>
Institutional Class year-to-date2012-09-300.0004<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Performance Information</b>0.01170.00020.0146Best Quarter0<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentTaxAdvantagePortfolio column period compact * ~</div>
2006-12-31<b>Principal Investment Strategies of the Fund</b>0.0129The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Principal Risks of Investing in the Fund</b>0.0003Worst Quarter<b>Performance Information</b>00.013<b>Annual Total Returns</b>2011-12-31<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0001Corporate Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended June 30, 2007): 1.27%<br/>Worst Quarter (ended December 31, 2009 and December 31, 2011): 0.01%Cash Management Class year-to-dateThe Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.0.0015<b>Annual Total Returns</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.001This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:1993-08-181983-04-180.0003The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.0.0028The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.002270277The Fund&#8217;s past performance is not necessarily an indication of its future performance.50011430.0325<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentTaxAdvantagePortfolioBarChart column period compact * ~</div>
0.0345Cash Management Class year-to-date0.02042012-09-30<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentTaxAdvantagePortfolio column period compact * ~</div>
December 31, 20130.00040.0022www.invesco.com/us0.00040.0003Best QuarterAn investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.2007-09-30The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0087<b>Annual Total Returns</b>Worst QuarterThe Fund&#8217;s past performance is not necessarily an indication of its future performance.2010-03-310www.invesco.com/usCorporate Class year-to-date2012-09-300.0002<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesSTICPrimePortfolioCorporate column period compact * ~</div>
Best Quarter2007-06-300.0127Worst Quarter2011-12-310.0001<b>Principal Investment Strategies of the Fund</b>Corporate Class year-to-date (ended September 30, 2012): 0.04%<br/>Best Quarter (ended June 30, 2007 and September 30, 2007): 0.88%<br/>Worst Quarter (ended March 31, 2010 through December 31, 2011): 0.01%Institutional Class year-to-date (ended September 30, 2012): 0.02%<br/> Best Quarter (ended December 31, 2006): 1.32%<br/> Worst Quarter (ended June 30, 2011 through December 31, 2011): 0.01%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0169<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesSTICPrimePortfolioCorporate column period compact * ~</div>
0.01030.01240.0308-0.0010.049-0.00060.00030.050.0503230.01150.02070.0210.01550.00190840.00210.00020.00051510.00030.00040350Institutional Class year-to-date2012-09-300.0002<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedSTICPrimePortfolioCorporate column period compact * ~</div>
Best Quarter2006-12-310.0132Worst QuarterThe Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.<br/><br/>The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure.<br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.2011-12-310.00230.00010.00050.01710.0206<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>00.0007<b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTreasuryPortfolioCorporate column period compact * ~</div>
0.0040The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0033This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioCorporateBarChart column period compact * ~</div>
1996-01-170.00042005-09-080.00150.01470.00030.019200.0007<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTreasuryPortfolioCorporate column period compact * ~</div>
0.0025<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)340.001712102170.00034981990-08-170.01550.02<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolioCorporate column period compact * ~</div>
0.0010.0075<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b><div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTreasuryPortfolioCorporate column period compact * ~</div>
0.00031998-09-010.00880.0068<b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTreasuryPortfolioCorporateBarChart column period compact * ~</div>
-0.0008<b>Example.</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.December 31, 2013<b>Fees and Expenses of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTreasuryPortfolioCorporate column period compact * ~</div>
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.0003This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.0111690.0139261468<b>Shareholder Fees</b> (fees paid directly from your investment)10661772133310<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIOInstitutional column period compact * ~</div>
1999-01-04<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b><b>Principal Investment Strategies of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTAX-FREECASHRESERVEPORTFOLIOInstitutional column period compact * ~</div>
<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTAX-FREECASHRESERVEPORTFOLIOInstitutional column period compact * ~</div>
<b>Fees and Expenses of the Fund</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b>The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.<br/><br/>The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure.<br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/>Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/>Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/>Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/>Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br/><br/>Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.<br/><br/>Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/>Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/>Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/>Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/>Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/>Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.<br/><br/>Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/>Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities.<br/><br/>U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<br/><br/>Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTAX-FREECASHRESERVEPORTFOLIOInstitutionalBarChart column period compact * ~</div>
An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIOInstitutional column period compact * ~</div>
<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentTaxAdvantagePortfolioCorporate column period compact * ~</div>
<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Annual Total Returns</b>0.0003Personal Investment Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006 and September 30, 2007): 1.19%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.01450.0010.0195<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesLiquidAssetsPortfolio column period compact * ~</div>
<b>Performance Information</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentTaxAdvantagePortfolioCorporate column period compact * ~</div>
0An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesLiquidAssetsPortfolio column period compact * ~</div>
The Fund&#8217;s past performance is not necessarily an indication of its future performance.0Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.011December 31, 20130.01280.0315An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.0498Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Performance Information</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.0015The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0514The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.0010.0229<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentTaxAdvantagePortfolioCorporate column period compact * ~</div>
0.00050.0030.00150.0030.00090.0003December 31, 20132006-02-23www.invesco.com/us00.0022www.invesco.com/usMoney Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.0003An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.
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www.invesco.com/us0.0018The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/usThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<b>Annual Total Returns</b>0.0014The Fund&#8217;s past performance is not necessarily an indication of its future performance.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentTaxAdvantagePortfolioCorporateBarChart column period compact * ~</div>
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<b>Annual Total Returns</b>0.018-0.0004Personal Investment Class year-to-date2012-09-30<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentTaxAdvantagePortfolioCorporate column period compact * ~</div>
0.0002Best Quarter2007-09-30www.invesco.com/us0.0119Worst Quarter<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsLiquidAssetsPortfolioBarChart column period compact * ~</div>
2011-03-3100.01150.00530.0074-0.0004230.0266<b>Fund Summaries - STIC PRIME PORTFOLIO</b>880.0450.01260.04691610.0207-0.00063730.00570.00060.01230.00770.00020.0121-0.00060.0080.00030.02640.0054<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentAndAgencyPortfolio column period compact * ~</div>
0.00940.00730.04480.02590.02140.0470.04410.0319<b>Investment Objective(s)</b>0.02360.0340.0456<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTreasuryPortfolio column period compact * ~</div>
0.01990.00170.01730.00180.00020.0006<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolio column period compact * ~</div>
0.00020.0002The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.0.00020.00020.00030.00030.0158<b>Fees and Expenses of the Fund</b>0.0198This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentAndAgencyPortfolio column period compact * ~</div>
<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Fund Summaries - TREASURY PORTFOLIO</b>0<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTreasuryPortfolio column period compact * ~</div>
Personal Investment Class year-to-date (ended September 30, 2012): 0.02% <br/>Best Quarter (ended December 31, 2006): 1.18% <br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentAndAgencyPortfolio column period compact * ~</div>
0.00021994-06-30<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTreasuryPortfolio column period compact * ~</div>
0.0126<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)0.0157<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTreasuryPortfolioBarChart column period compact * ~</div>
0.00152000-01-31<b>Fees and Expenses of the Fund</b>00.0005Personal Investment Class year-to-date (ended September 30, 2012): 0.06% <br />Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.19% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.002<b>Shareholder Fees</b> (fees paid directly from your investment)<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTreasuryPortfolio column period compact * ~</div>
00.001400<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentAndAgencyPortfolio column period compact * ~</div>
0-0.00060.00150.0075Personal Investment Class year-to-date0.0003<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.00932012-09-300.00690.0004Corporate Class year-to-dateBest Quarter0.00152012-09-302007-09-300.00060.0088Best QuarterWorst Quarter02007-09-302011-12-310.00030.00010.01190.0018Worst Quarter2011-03-3100.0014<b>Fund Summaries - STIC PRIME PORTFOLIO</b><b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Principal Investment Strategies of the Fund</b>The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br /> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br /> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br /> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br /> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br /> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br /> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Performance Information</b>Personal Investment Class year-to-dateThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.2012-09-30<b>Annual Total Returns</b>0.0002Cash Management Class year-to-date (ended September 30, 2012): 0.06% <br />Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.31% <br /> Worst Quarter (ended September 30, 2009, December 31, 2009, March 31, 2010 and March 31, 2011 through December 31, 2011): 0.01%Best Quarter2006-12-310.00030.01180.0136Worst Quarter2011-03-310.01630<b>Example.</b>70272<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIOCorporate column period compact * ~</div>
49111210.01590.01010.0122<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesSTICPrimePortfolioPersonalInvestment column period compact * ~</div>
0.03140.04990.05180.02550.00180.0007This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.00030.0002140.0144<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTAX-FREECASHRESERVEPORTFOLIOCorporate column period compact * ~</div>
580.0168107249<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesSTICPrimePortfolioPersonalInvestment column period compact * ~</div>
<b>Principal Investment Strategies of the Fund</b><b>Example.</b>December 31, 2013<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTAX-FREECASHRESERVEPORTFOLIOCorporate column period compact * ~</div>
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<b>Example.</b>1999-01-04This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioPersonalInvestmentBarChart column period compact * ~</div>
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The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.<br/><br/>The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/>The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.1454<b>Principal Risks of Investing in the Fund</b>97226
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This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentAndAgencyPortfolioInstitutional column period compact * ~</div>
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The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Principal Investment Strategies of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentAndAgencyPortfolioInstitutional column period compact * ~</div>
<b>Fees and Expenses of the Fund</b>Cash Management Class year-to-dateThis table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentTaxAdvantagePortfolioInstitutional column period compact * ~</div>
2012-09-300.0006Best QuarterAs with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.2007-09-300.0131<b>Performance Information</b>Worst Quarter2011-12-31<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIO column period compact * ~</div>
0.0001The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.December 31, 2013<b>Fund Summaries - STIC PRIME PORTFOLIO</b><b>Shareholder Fees</b> (fees paid directly from your investment)An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Annual Total Returns</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentAndAgencyPortfolioInstitutionalBarChart column period compact * ~</div>
The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTAX-FREECASHRESERVEPORTFOLIO column period compact * ~</div>
www.invesco.com/us0<b>Fees and Expenses of the Fund</b><b>Shareholder Fees</b> (fees paid directly from your investment)<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Example.</b><b>Principal Investment Strategies of the Fund</b>0.0167<b>Principal Risks of Investing in the Fund</b>0.01090.013<b>Performance Information</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIOCorporate column period compact * ~</div>
0.0323<b>Annual Total Returns</b>0.0507<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.05270.02630.0025The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTAX-FREECASHRESERVEPORTFOLIO column period compact * ~</div>
<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.00150.00080.00150.0075<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesSTICPrimePortfolio column period compact * ~</div>
0.000300.00930.00690<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTAX-FREECASHRESERVEPORTFOLIOBarChart column period compact * ~</div>
-0.00241991-08-2000<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIO column period compact * ~</div>
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-0.0026As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br/><br/> Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.<br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br/><br/>Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.0.00150.00150.010.0050.00050.00050.0070.012-0.00040.00440.0101145497226<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioBarChart column period compact * ~</div>
Institutional Class year-to-date (ended September 30, 2012): 0.08% <br />Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.33% <br />Worst Quarter (ended September 30, 2011): 0.01%<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesLiquidAssetsPortfolioPersonalInvestment column period compact * ~</div>
-0.0026<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolio column period compact * ~</div>
<b>Principal Investment Strategies of the Fund</b>The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.<br/><br/> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesLiquidAssetsPortfolioPersonalInvestment column period compact * ~</div>
<b>Principal Risks of Investing in the Fund</b><b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b><b>Investment Objective(s)</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations.<br/><br/>The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Performance Information</b><b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Fund Summaries - TREASURY PORTFOLIO</b><b>Shareholder Fees</b> (fees paid directly from your investment)<b>Principal Risks of Investing in the Fund</b>0Institutional Class year-to-date2012-09-300<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedLiquidAssetsPortfolioPersonalInvestment column period compact * ~</div>
0.0008December 31, 2013Best Quarter<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Example.</b>2007-09-300.01330.0015Worst Quarter2011-09-300.010.0001This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.00070.0122<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsLiquidAssetsPortfolioPersonalInvestmentBarChart column period compact * ~</div>
-0.0021As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/>Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br/><br/>Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br/><br/>Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br/><br/>Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br/><br/>Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br/><br/>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br/><br/>Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br/><br/>Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.0101This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.70<b>Example.</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioPersonalInvestment column period compact * ~</div>
272This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.491112145This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.00081983640.0165846<b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b>0.0206103366650<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b>1459<b>Principal Investment Strategies of the Fund</b><b>Fees and Expenses of the Fund</b><b>Investment Objective(s)</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)<b>Fees and Expenses of the Fund</b><b>Example.</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentAndAgencyPortfolioInstitutional column period compact * ~</div>
<b>Principal Investment Strategies of the Fund</b>0.0179The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio structure is driven to some extent by the supply and availability of municipal obligations. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.0112This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.1980-11-10<b>Principal Risks of Investing in the Fund</b><b>Principal Investment Strategies of the Fund</b>0.0132As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Shareholder Fees </b>(fees paid directly from your investment)0.032<b>Performance Information</b><b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.0505<b>Annual Total Returns</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations.<br/><br/>The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.0528Private Investment Class year-to-date (ended September 30, 2012): 0.04% <br/>Best Quarter (ended June 30, 2007 and September 30, 2007): 0.82% <br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)December 31, 20130.0292<b>Performance Information</b>0.0056<b>Example.</b>The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br /> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities.<br/><br/>The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/>The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states. <br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.0.0019<b>Principal Risks of Investing in the Fund</b><b>Principal Risks of Investing in the Fund</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Principal Investment Strategies of the Fund</b>December 31, 20130.0013<b>Principal Risks of Investing in the Fund</b>December 31, 2013An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b>December 31, 2013As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.www.invesco.com/usThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<b>Investment Objective(s)</b>The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/usThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.The Fund&#8217;s past performance is not necessarily an indication of its future performance.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.Private Investment Class year-to-date2012-09-30<b>Fees and Expenses of the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br /> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br /> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br /> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br /> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br /> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Annual Total Returns</b>0.0004<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b>Best QuarterThis table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.2007-09-30<b>Performance Information</b>0.0082<b>Shareholder Fees</b> (fees paid directly from your investment)Worst QuarterThe bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.2011-03-31000The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)The Fund&#8217;s past performance is not necessarily an indication of its future performance.<b>Investment Objective(s)</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<b>Fees and Expenses of the Fund</b>www.invesco.com/usThis table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.0015<b>Shareholder Fees</b> (fees paid directly from your investment)0.0075<b>Example.</b>0.0007This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Annual Total Returns</b>0.0097<b>Principal Investment Strategies of the Fund</b>The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br />The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br /><br />Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Performance Information</b>The Fund&#8217;s past performance is not necessarily an indication of its future performance.-0.0028The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.Reserve Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.07% <br/>Worst Quarter (ended March 31, 2010): 0.00%<b>Annual Total Returns</b><b>Annual Total Returns</b>0.0069<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0106Reserve Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006 and September 30, 2007): 1.11%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.0063Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.00770.0197An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.03020.0323The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0181Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The Fund&#8217;s past performance is not necessarily an indication of its future performance.<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>0<b>Performance Information</b>0.0011<b>Investment Objective(s)</b>0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.www.invesco.com/us<b>Fees and Expenses of the Fund</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.00370.00020.02190.03990.04130.00030.01250.00050.0002The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0003Corporate Class year-to-dateThe Fund&#8217;s past performance is not necessarily an indication of its future performance.Best QuarterWorst Quarter0.00012011-09-300.0132www.invesco.com/us2007-09-300.0012012-09-30Corporate Class year-to-date (ended September 30, 2012): 0.10% <br/>Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.32% <br/>Worst Quarter (ended September 30, 2011): 0.01%<b>Annual Total Returns</b>Institutional Class year-to-date (ended September 30, 2012): 0.12% <br />Best Quarter (ended December 31, 2006 and September 30, 2007): 1.33% <br />Worst Quarter (ended September 30, 2011): 0.02%Reserve Class year-to-date2012-09-300.00020Best Quarter2006-12-310.01070The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.Worst QuarterThis table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)2010-03-31<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)00.0023December 31, 20130.005<b>Example.</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.00070.0080.005This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.0003<b>Principal Investment Strategies of the Fund</b>0.0108Institutional Class year-to-date<b>Principal Risks of Investing in the Fund</b>0.0141The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.2012-09-30As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.Personal Investment Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006 ): 1.16% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011 ): 0.00%2003-06-23000.00120.01740.00150.0003103-0.0030.00033586330.00211417Best Quarter2007-09-300.0133Worst Quarter2011-09-30<b>Investment Objective(s)</b>0.00020.0017The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.51<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.0002<b>Example.</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.225This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.0129415<b>Principal Investment Strategies of the Fund</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.0145962<b>Performance Information</b>The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br />The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedSTICPrimePortfolio column period compact * ~</div>
<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Annual Total Returns</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0013170.0179December 31, 20130.021464Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.1140.0003The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.264The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.0103www.invesco.com/us0.0126Resource Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006 and September 30, 2007): 1.28% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<b>Annual Total Returns</b>0.0010.00960.00250.0176Resource Class year-to-date0.0044December&nbsp;31, 20132012-09-300.0243<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.02310.0002The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.Best QuarterThe Fund&#8217;s past performance is not necessarily an indication of its future performance.0.00220.0415www.invesco.com/us-0.0007-0.00082007-09-300.01280.0437Worst Quarter<b>Example.</b>2011-03-31The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0203The Fund&#8217;s past performance is not necessarily an indication of its future performance.0www.invesco.com/us0.00081993-11-040.00020.0002This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:1992-04-0170Private Investment Class year-to-date (ended September 30, 2012): 0.06%<br/>Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.25%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%281Private Investment Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.24% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%5091164<b>Investment Objective(s)</b>0.01360.00780.01The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.Private Investment Class year-to-date0.02922012-09-300.04760.00020.0495Best Quarter<b>Fees and Expenses of the Fund</b>2006-12-310.02320.01240.0008Worst Quarter0.0002This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.2011-03-310.00030000.00150.0020.00050.0040.003Private Investment Class year-to-date2012-09-300.01430.0006Best Quarter0.00792007-09-300.01250.0098Worst Quarter2011-03-3100.02840.04670.04820.01990.00110.00020.0002-0.0021998-09-0101993-07-0800.00030.0010.01460.0050.01810.00030.00630.004344182331767December 31, 2013An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/us0.00020.0137<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesSTICPrimePortfolioPrivateInvestment column period compact * ~</div>
0.0175<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesSTICPrimePortfolioPrivateInvestment column period compact * ~</div>
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<b>Principal Investment Strategies of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioPrivateInvestmentBarChart column period compact * ~</div>
1996-09-23<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolioPrivateInvestment column period compact * ~</div>
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The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>Reserve Class year-to-date2012-09-300.0002Best Quarter2007-09-300.0111As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.Worst Quarter2011-03-31Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Fund Summaries - STIC PRIME PORTFOLIO</b>0<b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesSTICPrimePortfolioInstitutional column period compact * ~</div>
The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedSTICPrimePortfolioInstitutional column period compact * ~</div>
An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/usDecember 31, 2013<b>Annual Total Returns</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.0015<b>Example.</b>0.002Personal Investment Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.15% <br />Worst Quarter (ended March 31, 2010): 0.00%0.0003The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0038<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioInstitutionalBarChart column period compact * ~</div>
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:The Fund&#8217;s past performance is not necessarily an indication of its future performance.103Personal Investment Class year-to-date2012-09-300.00340.00023626411438<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolioInstitutional column period compact * ~</div>
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<b>Principal Investment Strategies of the Fund</b>-0.0004<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesLiquidAssetsPortfolioInstitutional column period compact * ~</div>
35118209477<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedLiquidAssetsPortfolioResource column period compact * ~</div>
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The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br/><br/> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br/><br/> The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIOPersonalInvestment column period compact * ~</div>
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0.01170.0047<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTAX-FREECASHRESERVEPORTFOLIOPersonalInvestmentBarChart column period compact * ~</div>
0.00680.0252
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0.04330.0446<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedLiquidAssetsPortfolioInstitutional column period compact * ~</div>
0.01550.00050.00020.0003<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTAX-FREECASHRESERVEPORTFOLIOPrivateInvestmentBarChart column period compact * ~</div>
<b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b><b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesLiquidAssetsPortfolioCorporate column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedLiquidAssetsPortfolioCorporate column period compact * ~</div>
The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0.0158<b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b><b>Performance Information</b>0.0092<b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsLiquidAssetsPortfolioInstitutionalBarChart column period compact * ~</div>
00.0112<b>Fees and Expenses of the Fund</b><b>Shareholder Fees</b> (fees paid directly from your investment)0.03Best Quarter<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIOPrivateInvestment column period compact * ~</div>
<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<b>Shareholder Fees </b>(fees paid directly from your investment)2006-12-310The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0.0115<b>Example.</b><b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)Worst Quarter<b>Example.</b>2010-03-31<b>Principal Investment Strategies of the Fund</b>00.0485<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsLiquidAssetsPortfolioCorporateBarChart column period compact * ~</div>
0.05070.0272<b>Principal Investment Strategies of the Fund</b>0.0037<b>Investment Objective(s)</b><b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioCorporate column period compact * ~</div>
<b>Performance Information</b><b>Annual Total Returns</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioInstitutional column period compact * ~</div>
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<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Principal Risks of Investing in the Fund</b>0.0003This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.01210.0152The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/> The portfolio structure is driven to some extent by the supply and availability of municipal obligations.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.0.0003<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentTaxAdvantagePortfolioReserve column period compact * ~</div>
The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.Reserve Class year-to-date (ended September 30, 2012): 0.04%<br/>Best Quarter (ended June 30, 2007 and September 30, 2007): 0.67%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.00840.00020.00230.0021<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioResource column period compact * ~</div>
2001-05-310.00420.00750.02330.0417820.00070.04363090.01740.01050.00055550.000212600.0080.0003December 31, 20130.0010.00160.0002An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.01620.0053<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedLiquidAssetsPortfolioReserve column period compact * ~</div>
0.01950.02890.05240.02210.0502<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentTaxAdvantagePortfolioReserveBarChart column period compact * ~</div>
0.00030.0090.0104Reserve Class year-to-date (ended September 30, 2012): 0.06%<br/> Best Quarter (ended September 30, 2006, December 31, 2006 and June 30, 2007): 1.11%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/us<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsLiquidAssetsPortfolioReserveBarChart column period compact * ~</div>
Reserve Class year-to-date2012-09-30<b>Annual Total Returns</b>0.0004<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)Best Quarter2007-09-300.0067Worst Quarter2011-03-310<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioReserve column period compact * ~</div>
0.00030.01230.0141<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedLiquidAssetsPortfolioPrivateInvestment column period compact * ~</div>
00<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIOReserve column period compact * ~</div>
0.0023www.invesco.com/us0.012000-12-040.0007<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentTaxAdvantagePortfolioPersonalInvestment column period compact * ~</div>
0.0130.0112The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br /> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Annual Total Returns</b>December 31, 2013<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentTaxAdvantagePortfolioPersonalInvestment column period compact * ~</div>
The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio structure is driven to some extent by the supply and availability of municipal obligations. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTAX-FREECASHRESERVEPORTFOLIOReserve column period compact * ~</div>
-0.0018As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br /> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br /> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br /> Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies. <br /><br /> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br /> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br /> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentTaxAdvantagePortfolioPersonalInvestment column period compact * ~</div>
1141999-01-04Institutional Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.30% <br />Worst Quarter (ended December 31, 2009 through June 30, 2010 and December 31, 2010 through December 31, 2011): 0.01%2005-03-293946961552<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentTaxAdvantagePortfolioPersonalInvestmentBarChart column period compact * ~</div>
0.0003Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.00770.0083<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentTaxAdvantagePortfolioPersonalInvestment column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)December 31, 2013An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Institutional Class year-to-date2012-09-300.0002Best Quarter2006-12-310.013Worst QuarterMoney Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.2011-12-31<b>Performance Information</b>0.0001The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIOReserve column period compact * ~</div>
The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.00490.0009www.invesco.com/us0.0020.0134Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentAndAgencyPortfolioCorporate column period compact * ~</div>
0.02380.0259<b>Annual Total Returns</b><div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTAX-FREECASHRESERVEPORTFOLIOReserve column period compact * ~</div>
0.01190.00050.0002The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0003Personal Investment Class year-to-date (ended September 30, 2012): 0.04%<br />Best Quarter (ended June 30, 2007 and September 30, 2007): 0.75%<br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.01720.01080.0122<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentAndAgencyPortfolioCorporate column period compact * ~</div>
0.0305www.invesco.com/us0.04880.04880.01720.00140.0005<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>0.0003<b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)
<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentAndAgencyPortfolioCorporate column period compact * ~</div>
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0.00030.00020.00050.01510.02920.02710.01660.00470.00330.0079<b>Fund Summaries - TREASURY PORTFOLIO</b><b>Investment Objective(s)</b><div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentAndAgencyPortfolioPrivateInvestment column period compact * ~</div>
Personal Investment Class year-to-dateThe Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.2012-09-300.0004Best Quarter2007-09-300.0075<b>Fees and Expenses of the Fund</b>2011-03-31Worst QuarterThis table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentAndAgencyPortfolioPrivateInvestment column period compact * ~</div>
<b>Shareholder Fees</b> (fees paid directly from your investment)Reserve Class year-to-date02012-09-3000.0006Best Quarter2007-06-300.0111Worst Quarter2011-03-3100<b>Example.</b><b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.00150.0020.00030.00380.003This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsGovernmentAndAgencyPortfolioCorporateBarChart column period compact * ~</div>
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<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0003<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentAndAgencyPortfolioPersonalInvestment column period compact * ~</div>
0.01350.0186<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedGovernmentAndAgencyPortfolioPersonalInvestment column period compact * ~</div>
1984-04-12-0.0025<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesGovernmentAndAgencyPortfolioPrivateInvestment column period compact * ~</div>
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1999-06-01<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTreasuryPortfolioInstitutional column period compact * ~</div>
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<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)December 31, 2013<b>Example.</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioReserveBarChart column period compact * ~</div>
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This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations. <br /><br /> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br /> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.-0.0008<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolioReserve column period compact * ~</div>
December 31, 2013<b>Example.</b>00-0.0004This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Investment Objective(s)</b>0.00150.005<b>Fees and Expenses of the Fund</b>0.0003<b>Shareholder Fees</b> (fees paid directly from your investment)0.0068311142050.0044<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)47331<b>Example.</b><b>Principal Investment Strategies of the Fund</b>118<b>Principal Risks of Investing in the Fund</b>214495<b>Performance Information</b><b>Principal Investment Strategies of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Annual Total Returns</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Principal Investment Strategies of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.0<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations.<br/><br/>The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/>The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/>In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/>The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.www.invesco.com/us<b>Annual Total Returns</b>0.00150.0015<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0050.01<b>Principal Risks of Investing in the Fund</b>Resource Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.28% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0.00030.00030.00680.0118-0.00170.01010.0044As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.-0.0024<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesLiquidAssetsPortfolioReserve column period compact * ~</div>
Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The Fund invests in high-quality U.S. dollar denominated obligations with maturities of 60 days or less, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.<br/><br/> The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> The Fund may purchase delayed delivery and when-issued securities that have a maturity of up to 60 days, calculated from settlement date. The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Resource Class year-to-date2012-09-300.0002Best Quarter2006-12-310.0128Worst Quarter<b>Performance Information</b>2011-03-310The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:45193355www.invesco.com/us824<b>Annual Total Returns</b><b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.<br/><br/> Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating.<br/><br/> Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br/><br/> Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<br/><br/> Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.<b>Performance Information</b><b>Fund Summaries - LIQUID ASSETS PORTFOLIO</b><b>Investment Objective(s)</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations. <br /><br /> The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br /> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br /> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br /> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)-0.0019<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)December 31, 2013<b>Example.</b>Resource Class year-to-date (ended September 30, 2012): 0.02% <br />Best Quarter (ended December 31, 2006): 1.26% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br /> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br /> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br /> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br /> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br /> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br /> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br /> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br /> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b>Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The Fund invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers&#8217; acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes. <br /><br />The Fund may engage in repurchase agreement transactions that are collateralized by cash or government securities. In addition, it may engage in repurchase agreement transactions that are collateralized by nongovernment securities such as equity securities and securities that are rated investment grade and below investment grade by nationally recognized statistical rating organizations or unrated securities of comparable quality. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with Security and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. The Fund may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Principal Risks of Investing in the Fund</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0158The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.0094www.invesco.com/us0.01120.02990.04810.04970.0213December 31, 20130.00170.00020.0002As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest.<br /><br />Foreign Securities Risk. The value of the Fund&#8217;s foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Private Investment Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.22%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%0Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<b>Performance Information</b>0The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.0.001Resource Class year-to-date2012-09-300.0020.0002Best Quarter0.00032006-12-310.0126www.invesco.com/usWorst Quarter2011-03-310<b>Annual Total Returns</b>0.0029Private Investment Class year-to-date2012-09-300.0002Best Quarter2006-12-310.00330.0122Worst Quarter2011-03-3100.00020.00020.0030.02620.0496<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.00030.04740.0120.0164The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0290.01020.0082<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.0148Private Investment Class year-to-date (ended September 30, 2012): 0.02%<br />Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.25%<br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%Private Investment Class year-to-date2012-09-300.0002Best Quarter2007-09-300.0125Worst Quarter2011-03-3100.00020.01560.01871996-02-16<b>Fund Summaries - TAX-FREE CASH RESERVE PORTFOLIO</b>0.01410.00780.00920.02740.04570.04570.01420.0005The Fund&#8217;s investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity.0.00020.0003<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)0<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0.00070.0050.00411991-11-22-0.0009<b>Example.</b>December&nbsp;31, 2013This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. <br /><br />The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br /><br />Although your actual costs may be higher or lower, based on these assumptions, your costs would be:30102181414<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTreasuryPortfolioPrivateInvestment column period compact * ~</div>
<b>Principal Investment Strategies of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTreasuryPortfolioPrivateInvestment column period compact * ~</div>
0.00020.0144<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTreasuryPortfolioPrivateInvestment column period compact * ~</div>
0.0186<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTreasuryPortfolioPrivateInvestmentBarChart column period compact * ~</div>
<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTreasuryPortfolioPrivateInvestment column period compact * ~</div>
The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities, the interest of which is excluded from gross income for federal income tax purposes and does not constitute an item of preference for purposes of the alternative minimum tax. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund invests primarily in high quality U.S. dollar-denominated short-term debt obligations, including: (i) municipal securities; (ii) tax-exempt commercial paper; and (iii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Synthetic municipal securities, which include variable rate instruments that are created when fixed rate bonds are coupled with a third party demand feature, are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security&#8217;s maturity. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />The Fund may also invest in securities whether or not considered foreign securities, which carry foreign credit exposure. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The portfolio managers manage liquidity, for instance, by trading in daily and weekly variable-rate demand notes. <br /><br />The portfolio structure is driven to some extent by the supply and availability of municipal obligations. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Counterparty Risk. Counterparty risk is the risk that the other party to the contract will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund. <br /><br />Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer&#8217;s credit rating. <br /><br />Foreign Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. <br /><br />Industry Focus Risk. To the extent the Fund invests in securities issued or guaranteed by companies in the banking and financial services industries, the Fund&#8217;s performance will depend on the overall condition of those industries, which may be affected by the following factors: the supply of short-term financing, changes in government regulation and interest rates, and the overall economy. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Municipal Securities Risk. The Fund may invest in municipal securities. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer&#8217;s regional economic conditions may affect the municipal security&#8217;s value, interest payments, repayment of principal and the Fund&#8217;s ability to sell it. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security&#8217;s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of the instruments, and a portfolio could suffer a loss if the issuer defaults during periods in which a portfolio is not entitled to exercise its demand rights.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.As with any mutual fund investment, loss of money is a risk of investing.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.As with any mutual fund investment, loss of money is a risk of investing.<b>Performance Information</b>As with any mutual fund investment, loss of money is a risk of investing.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/usAs with any mutual fund investment, loss of money is a risk of investing.<b>Annual Total Returns</b>-0.0004As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.0.0115www.invesco.com/us0.00720.00860.02060.03110.03320.01910.00140.00020.0003<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.Resource Class year-to-date2012-09-300.0004As with any mutual fund investment, loss of money is a risk of investing.Best Quarter2007-09-300.0085Worst Quarter2011-03-310As with any mutual fund investment, loss of money is a risk of investing.1999-04-06<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTAX-FREECASHRESERVEPORTFOLIOResource column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing.002000-01-142005-08-01The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/us0.01510.00930.01140.03060.04910.0510.02470.00130.00030.0003December 31, 2013Resource Class year-to-date (ended September 30, 2012): 0.06%<br/>Best Quarter (ended September 30, 2006, December 31, 2006 and September 30, 2007): 1.29%<br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTAX-FREECASHRESERVEPORTFOLIOResource column period compact * ~</div>
<b>Fund Summaries - GOVERNMENT &amp; AGENCY PORTFOLIO</b>Resource Class year-to-dateAs with any mutual fund investment, loss of money is a risk of investing.2012-09-300.0006Best Quarter2007-09-30<b>Investment Objective(s)</b>0.0129The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTAX-FREECASHRESERVEPORTFOLIOResource column period compact * ~</div>
Worst Quarter2011-03-310<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees </b>(fees paid directly from your investment)<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTAX-FREECASHRESERVEPORTFOLIOResourceBarChart column period compact * ~</div>
<b>Example.</b>This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same. <br/><br/>Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Annual Total Returns</b><b>Principal Investment Strategies of the Fund</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<b>Fund Summaries - TREASURY PORTFOLIO</b><b>Investment Objective(s)</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury and other securities issued or guaranteed as to principal and interest by the U.S. Government or its agencies and instrumentalities (Agency Securities), as well as repurchase agreements secured by those obligations. Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities, as well as repurchase agreements secured by those obligations. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term ratings category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b><b>Principal Risks of Investing in the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<b>Performance Information</b><b>Shareholder Fees </b>(fees paid directly from your investment)0.0003The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.<b>Annual Total Returns</b><b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)0.01530.0191Reserve Class year-to-date (ended September 30, 2012): 0.02% <br/>Best Quarter (ended December 31, 2006): 1.10% <br/>Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.010.00150.00030.01181996-01-160.0101December 31, 2013An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.As with any mutual fund investment, loss of money is a risk of investing.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTAX-FREECASHRESERVEPORTFOLIOResource column period compact * ~</div>
www.invesco.com/usReserve Class year-to-date2012-09-300.0002Best Quarter2006-12-310.011Worst Quarter2011-03-310-0.0017<b>Example.</b>0.00910.00220.0040.02260.04070.0423This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:0.01410.00050.0002103As with any mutual fund investment, loss of money is a risk of investing.0.00023586331417<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedSTICPrimePortfolioResource column period compact * ~</div>
<b>Fund Summaries - GOVERNMENT TAXADVANTAGE PORTFOLIO</b><b>Investment Objective(s)</b>The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.<b>Fees and Expenses of the Fund</b>This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.<b>Shareholder Fees</b> (fees paid directly from your investment)<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)0<b>Example.</b>0An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/>The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<b>Principal Investment Strategies of the Fund</b><b>Principal Investment Strategies of the Fund</b>The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities. <br /><br />The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase. <br /><br />The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states. <br /><br />The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds. <br /><br />In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. <br /><br />The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b>As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br /><br />Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance. <br /><br />Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration. <br /><br />Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities. <br /><br />Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br /><br />Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations. <br /><br />Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. <br /><br />Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br /><br />U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<b>Performance Information</b><b>Annual Total Returns</b><b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0010.010.00030.0113<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsSTICPrimePortfolioResourceBarChart column period compact * ~</div>
0.01The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury including bills, notes and bonds, and repurchase agreements secured by those obligations. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury, including bills, notes and bonds, and repurchase agreements secured by those obligations.<br/><br/> The Fund invests predominately in those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedSTICPrimePortfolioResource column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: <br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results. <br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. <br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.<b>Performance Information</b>The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.Private Investment Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.23%<br/>Worst Quarter (ended March 31, 2010): 0.00%<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesSTICPrimePortfolioResource column period compact * ~</div>
-0.0013December 31, 2013As with any mutual fund investment, loss of money is a risk of investing.0.0089An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.0.00210.0035Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.0.02160.03980.0398<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesSTICPrimePortfolioResource column period compact * ~</div>
0.00940.00051020.00020.0003346610As with any mutual fund investment, loss of money is a risk of investing.1363As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> Repurchase Agreement Risk. If the seller of a repurchase agreement defaults or otherwise does not fulfill its obligations, the Fund may incur delays and losses arising from selling the underlying securities, enforcing its rights, or declining collateral value.<b>Annual Total Returns</b>As with any mutual fund investment, loss of money is a risk of investing.0.00020.0113The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.0.0135The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/usPrivate Investment Class year-to-date2012-09-300.0002Best QuarterReserve Class year-to-date (ended September 30, 2012): 0.02%<br/>Best Quarter (ended December 31, 2006): 1.08%<br/> Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%2006-12-310.0123Worst Quarter2010-03-3102000-01-26As with any mutual fund investment, loss of money is a risk of investing.Personal Investment Class year-to-date<b>Investment Objective(s)</b>2012-09-3000.0002<b>Fees and Expenses of the Fund</b>Best Quarter02006-12-31<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.0015<b>Shareholder Fees </b>(fees paid directly from your investment)0.0050.00070.01160.0072Worst Quarter0.00392011-03-310-0.0033<b>Annual Fund Operating Expenses </b>(expenses that you pay each year as a percentage of the value of your investment)0.00030.00990.01251999-01-04<b>Fund Summaries - STIC PRIME PORTFOLIO</b>0.01190.00530.00670.02480.04310.04310.01180.0006As with any mutual fund investment, loss of money is a risk of investing.0.00020.0003401973688630.00030.01340.01731994-12-21Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.As with any mutual fund investment, loss of money is a risk of investing.December 31, 20130.01440.00770.00980.02820.04640.04770.01850.00090.00020.0003An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.-0.001As with any mutual fund investment, loss of money is a risk of investing.Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.00www.invesco.com/us0.00030.0110.0146Reserve Class year-to-date2012-09-300.00020.00150.0020.0007Best Quarter0.00422006-12-310.01080.003Worst Quarter2011-03-31045193355-0.0012824<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentTaxAdvantagePortfolioPrivateInvestment column period compact * ~</div>
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The Fund&#8217;s past performance is not necessarily an indication of its future performance.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTreasuryPortfolioPersonalInvestmentBarChart column period compact * ~</div>
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This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.<br/><br/> The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&#8217;s operating expenses remain the same.<br/><br/> Although your actual costs may be higher or lower, based on these assumptions, your costs would be:<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesLiquidAssetsPortfolioPrivateInvestment column period compact * ~</div>
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31123223518As with any mutual fund investment, loss of money is a risk of investing.<b>Principal Investment Strategies of the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesTreasuryPortfolioResource column period compact * ~</div>
The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds, and in securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities (Agency Securities). Agency Securities may be supported by (i) the full faith and credit of the U.S. Treasury; (ii) the right of the issuer to borrow from the U.S. Treasury; (iii) the discretionary authority of the U.S. Government to purchase certain obligations of the agency or instrumentality; or (iv) the credit of the agency or instrumentality. At the present time, the Fund has no current intention to invest in securities other than direct obligations of the U.S. Treasury and Agency Securities.<br/><br/> The Fund will limit investments to those securities that are First Tier Securities (defined below) at the time of purchase.<br/><br/> The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states.<br/><br/> The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940 of no more than 120 days. Each investment must be determined to present minimal credit risks by the Fund&#8217;s Adviser pursuant to guidelines approved by the Fund&#8217;s Board of Trustees, and must be an &#8220;Eligible Security&#8221; as defined under applicable regulations. First Tier Securities generally means Eligible Securities rated within the highest short-term rating category, an unrated security of comparable quality as determined by the Adviser under the supervision of the Board of Trustees, U.S. Government Securities as defined by applicable regulations, and securities issued by other registered money market funds.<br/><br/> In selecting securities for the Fund&#8217;s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities.<br/><br/> The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.<b>Principal Risks of Investing in the Fund</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesTreasuryPortfolioResource column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing.<div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedTreasuryPortfolioResource column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:<br/><br/> Cash/Cash Equivalents Risk. Holding cash or cash equivalents may negatively affect performance.<br/><br/> Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.<br/><br/> Liquidity Risk. The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.<br/><br/> Management Risk. The investment techniques and risk analysis used by the Fund&#8217;s portfolio managers may not produce the desired results.<br/><br/> Market Risk. The prices of and the income generated by the Fund&#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and interest rate fluctuations.<br/><br/> Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.<br/><br/> Reinvestment Risk. Reinvestment risk is the risk that a bond&#8217;s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.<br/><br/> U.S. Government Obligations Risk. The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund&#8217;s ability to recover should they default.<div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsTreasuryPortfolioResourceBarChart column period compact * ~</div>
Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the Fund&#8217;s adviser or its affiliates to enter into support agreements or take other actions to maintain the Fund&#8217;s $1.00 share price. The credit quality of the Fund&#8217;s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund&#8217;s share price. The Fund&#8217;s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the Fund is managed, possibly negatively impacting its return. Additionally, the Fund&#8217;s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.As with any mutual fund investment, loss of money is a risk of investing.<b>Performance Information</b><div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedTreasuryPortfolioResource column period compact * ~</div>
December 31, 2013The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund&#8217;s past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund&#8217;s Web site at www.invesco.com/us.The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31.The Fund&#8217;s past performance is not necessarily an indication of its future performance.www.invesco.com/us<b>Annual Total Returns</b>Resource Class year-to-date (ended September 30, 2012): 0.02%<br/> Best Quarter (ended December 31, 2006): 1.25%<br/> Worst Quarter (ended March 31, 2010): 0.00%<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.00030.01380.0181999-12-301996-03-061998-09-01<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentAndAgencyPortfolioReserve column period compact * ~</div>
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0.01530.00870.01070.02910.04730.04870.01940.00120.0002As with any mutual fund investment, loss of money is a risk of investing.0.0003Resource Class year-to-date2012-09-300.0002Best Quarter2006-12-310.0125Worst Quarter2010-03-3100.01550.00920.01060.02880.04720.0471<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)0.01560.00070.00020.0003As with any mutual fund investment, loss of money is a risk of investing.<div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedGovernmentTaxAdvantagePortfolioReserve column period compact * ~</div>
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December 31, 2013As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.<b>Example.</b>As with any mutual fund investment, loss of money is a risk of investing.The Fund&#8217;s investment objective is to provide current income consistent with preservation of capital and liquidity.As with any mutual fund investment, loss of money is a risk of investing.Resource Class year-to-date (ended September 30, 2012): 0.04% <br />Best Quarter (ended June 30, 2007 and September 30, 2007): 0.85% <br />Worst Quarter (ended March 31, 2010 and March 31, 2011): 0.00%An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.As with any mutual fund investment, loss of money is a risk of investing.<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentAndAgencyPortfolioResource column period compact * ~</div>
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As with any mutual fund investment, loss of money is a risk of investing.This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.<b>Average Annual Total Returns</b> (for the periods ended December 31, 2011)<div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFeesGovernmentTaxAdvantagePortfolioResource column period compact * ~</div>
As with any mutual fund investment, loss of money is a risk of investing.As with any mutual fund investment, loss of money is a risk of investing.<b>Investment Objective(s)</b>As with any mutual fund investment, loss of money is a risk of investing.December 31, 2013Invesco Distributors, Inc. (Invesco Distributors) has contractually agreed, through at least December 31, 2013, to waive 0.02% of Rule 12b-1 distribution plan payments. Unless the Board of Trustees and Invesco Advisers, Inc. mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed, through at least December 31, 2013 to waive advisory fees and/or reimburse expenses of all shares to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Cash Management Class shares to 0.22% (after Rule 12b-1 fee waiver). Unless the Board of Trustees and Invesco mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed, through at least December 31, 2013 to waive advisory fees and/or reimburse expenses of all shares to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Institutional Class shares to 0.25%. Unless the Board of Trustees and Invesco mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed, through at least December 31, 2013 to waive advisory fees and/or reimburse expenses of all shares to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Institutional Class shares to 0.14%. Unless the Board of Trustees and Invesco mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed, through at least December 31, 2013 to waive advisory fees and/or reimburse expenses of all shares to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Corporate Class shares to 0.17%. Unless the Board of Trustees and Invesco mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.Invesco Distributors, Inc. (Invesco Distributors) has contractually agreed, through at least December 31, 2013, to waive 0.02% of Rule 12b-1 distribution plan payments. Unless the Board of Trustees and Invesco Advisers, Inc. mutually agree to amend or continue the fee waiver agreement, it will terminate on December 31, 2013.